Find The Missing Number In the Sequence.
6 25 64 ? 32 1

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Find out the missing number in the picture attached:

Which alphabet is a part of our body?

I know a nine-letter word having only one vowel.
Do you ?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Can you find the missing piece of the Porsche?

Take one out and scratch my head, I am now black but once was red. What am I?

You are mixing a mixture of cement and Sand with five gallons of water. You have a garden hose giving you all the water you need. The problem is that you only have a four-gallon bucket and a seven-gallon bucket and neither has graduation marks. Find a method to measure five gallons.